chore(wasm-builder): Test features tracking

[ark0f]

Also skip WASM compilation during Intellij project sync because Intellij itself cannot yet.

Actually this was attempt to get rid of constant build script re-run :/

Idea was to use CARGO_FEATURE_* environment variables listing (cargo_metadata) and tracking (cargo:rerun-if-env-changed) but:

Note that the environment variables here are intended for global environment variables like CC and such, it is not possible to use this for environment variables like TARGET that Cargo sets for build scripts. The environment variables in use are those received by cargo invocations, not those received by the executable of the build script.